75 lines
2.7 KiB
Go
75 lines
2.7 KiB
Go
package app
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import (
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"bindbox-game/internal/code"
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"bindbox-game/internal/pkg/core"
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"bindbox-game/internal/pkg/validation"
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"net/http"
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"strconv"
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)
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type redeemCouponRequest struct {
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CouponID int64 `json:"coupon_id"`
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}
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type redeemCouponResponse struct {
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Success bool `json:"success"`
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CouponID int64 `json:"coupon_id"`
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LedgerID int64 `json:"ledger_id"`
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Message string `json:"message"`
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}
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// RedeemPointsToCoupon 积分兑换优惠券（仅支持直减金额券）
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// @Summary 积分兑换优惠券
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// @Description 使用积分兑换指定直减金额券，按比率 1积分=1元（券面值为分）
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// @Tags APP端.积分
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// @Accept json
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// @Produce json
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// @Security LoginVerifyToken
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// @Param RequestBody body redeemCouponRequest true "请求参数"
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// @Success 200 {object} redeemCouponResponse
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// @Failure 400 {object} code.Failure
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// @Router /api/app/users/{user_id}/points/redeem-coupon [post]
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// RedeemPointsToCoupon 使用积分兑换优惠券处理器
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// 功能：扣减用户积分后为用户发放直减金额券，并返回扣减流水ID与券ID
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// 参数：无（通过上下文获取 user_id，body 解析 coupon_id）
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// 返回：core.HandlerFunc 处理 POST /api/app/users/{user_id}/points/redeem-coupon
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func (h *handler) RedeemPointsToCoupon() core.HandlerFunc {
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return func(ctx core.Context) {
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req := new(redeemCouponRequest)
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rsp := new(redeemCouponResponse)
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if err := ctx.ShouldBindJSON(req); err != nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
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return
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}
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userID := int64(ctx.SessionUserInfo().Id)
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sc, err := h.readDB.SystemCoupons.WithContext(ctx.RequestContext()).Where(h.readDB.SystemCoupons.ID.Eq(req.CouponID), h.readDB.SystemCoupons.Status.Eq(1)).First()
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if err != nil || sc == nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 150001, "coupon not found"))
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return
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}
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if sc.DiscountType != 1 || sc.DiscountValue <= 0 {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 150002, "only amount coupons supported"))
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return
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}
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needPoints, _ := h.user.CentsToPoints(ctx.RequestContext(), sc.DiscountValue)
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if needPoints <= 0 {
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needPoints = 1
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}
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ledgerID, err := h.user.ConsumePointsFor(ctx.RequestContext(), userID, needPoints, "system_coupons", strconv.FormatInt(req.CouponID, 10), "redeem coupon", "redeem_coupon")
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if err != nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 150003, err.Error()))
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return
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}
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if err := h.user.AddCoupon(ctx.RequestContext(), userID, req.CouponID); err != nil {
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ctx.AbortWithError(core.Error(http.StatusBadRequest, 150004, err.Error()))
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return
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}
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rsp.Success = true
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rsp.CouponID = req.CouponID
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rsp.LedgerID = ledgerID
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rsp.Message = "ok"
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ctx.Payload(rsp)
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}
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}
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